Right, that's not the first "infinity scrolling" thing I've seen so it falls in with all the rest. My favorite option, I think, is to be given a drop down/combo box that asks me how many I want to see (and is populated with 3-5 options). I like having that separation. I think it's a more efficient way also.

Let's say that you and I both search for a topic. The result we both want is result #33. We both find it, read it, and close the browser. The next day when we come back to the computer, we need to find it again. I think it's much easier to remember "That was at the top of the third page" than "I had to scroll maybe 5 or 6 times".